Planing-machine attachment.



'- Tfe all it may UNITED STATES PATENT OFFICE.

tirrannns'ng 3123mm; or cmcmna'rr, 01110, ASSIGNOR ,ro THE-rema ns mcnmimx 'comrlmr, or cmcmmi'rr, OHIO, A. CORPORATION or omo.

Be'it'known'that 1, CHARLES E. Bnnonh, a citizen of the United States, res1ding in Cincinnati, in the county of Hamilton and Stateof Ohio, have invented certain new and useful Improvements in Planing-Machine-Attachments, of which the following is a full, clear, and exact description,,r.eference beinghad to the accompanying drawings, forming part of this specification.

The object of'my invention is to provide an attachment for planing machines, for the cutting of spiral grooves in cylinders, particularly cylinders of such large diameters and size that they cannot be handled upon the ordinary milling machines or lathes.

A demand has arisen, especially in connection with rinting machinery, for metallic cylinders of large diameters with spiral oves cut in the cylindrical surface thereo and heretofore costly special machinery 'structed for doing this work. No machine adaptedfor ordinary work is built of suf-' ficientlylarge size to hold such cylinders.

It is' the urpose of my invention to obviate this drfliculty by providing an attachment for the table of a planing machine,

which can be readily and easily secured in lace, and which shall be adapted to hold ndresent to the cutting tool cylinders of anydesired length and diameter.

In the drawings Figure 1 is a side elevation of a portion of a planing machine, with my attachment mounted thereon. Fig. 2 is a top plan view of same-,and Fig. 3 is a and sides cross section taken on the lines 2, 2, of

Fi 1. wl 'is a portion of the bed of a planing machine, and 2 a portion of the table therefor, provided with the T-slots 3 and {in the top thereof, for securing the work on the table.

6 'isthe' head-stock and 7 the tail stock of my attachment for holding the cyl1nders,. in which the spiral grooves are tobe cut, and these su porting standards for the work are secured liy the bolts- 8-m the T-slots of the planing machine table.

" 9 1s the mandrel or shaft, upon which the [metallic cylinder 10, to be'qperated on, is

mounted and this mandrel may be either a separate shaft upon which-the work is se- Specification of Letters Patent. Y

.Application filed December 7, 1908. Serial No. 466,348.

-has had to be designed and 'con-' rLANme-mAcnmn ATTACHMENT.

Patented Oct. 13,1211

may be held between: the cone centers 11 and 12 on the head and tail stocks.

13 1s the dividing or index plate, mounted on the shaft 14:, journaled in the head stock, the index plate carrying the usual series of holes foradjusting the work, one of which 1s engaged by the index pin 15, mounted in the holder 16, which holder is clamped to the mandrel 9, and by meansof which conneetion, the mandrel is driven at the desired rate of speed to slowly rotate the cylinder 10, in which the spiral grooves are to be cut as tlu planing table is. advancedto the cut-ting tool 17, held by the planer head 18. I haveillustrated a simple cutting tool 17 for cutting the grooves, butit will be understood that any desired milling attachment carrying a rotating cutter can also be' employed.

The tail stock of the attachment is provided with the usual set screw construction 19, for adjusting the dead center 12,- to pro erly hold the mandrel.-

e mandrel is driven by the spiral gear 20, keyed on the shaft 14, supported in the head stock, which gear meshes with spiral ear 21 on the shaft 22, journaled in the rame or plate 23, which is secured by the bolts 24, 24 in the T-slot 4 in the side of the table.

The shaft 22 carries the gear 25 which meshes with the gear 26 mounted in the sector plate 27 of the usual construction, so that the gears may be changed as desired, and the gear 26 through a train'of.

gears and pinions all mounted on the frame plate 23, is driven by the gear 28,'which in turn meshes with the rack 29 horizontally bolted along one side to the bed of the macliine.- p v H The operation of the device will be apparent from the foregoing. description. H

It will be evident that w thin the capacity of the planing machine,'spiral' grodves may "be cut of any desired pitchon metal cyl-' inders, of a lar e diameterand considerable length, and which could not be outwith any ordinary milling machine. The head and tail stock and the plate holding the train of gears, can be readily and easily secured on the planer and when the work is completed' the attachment may be'readily and easily removed. By a proper. chan e of gears as will be readily unders the cylinders may be driven 1n either direction,

i so' as to cut either a right or left hand is brought up to the cut-tingxtool, at the same time that the work is slowly rotated in either direction.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is: v

The combination with a laming machine, comprising it bed frame, a relatively fixed head piece to hold a cutting tool in fixed position, and a table mounted to reciprocate lengthwise to end from the relatively fixed cuttin tool, said teble being provided with e longitudinal T-slot in its top surface and a. longitudinal T-slot in its side edge, of a separable headstock and :i separable tail-- stock, with supporting bases providetL-ivith weenie the "islet in the siie edge of said table, a

fixed rack secured. to the bed frame of the planet, parallei with said T-slot, and a train of geanng mounted in said frame plate head bolts for securing seine 'acijustebly in.

with connection therefor with the mandrel on one side and with the fixed frame on the other, whereby the movement of the pinning table will drive the mandrel, and

work of any size Within the capacity of the planer may be operated upon.

v CHARLES E BEROLD,

Witnesses:

Bnssm'A. BEALL, ARTHUR H. EWALD. 

